A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Barry D Klein, MD with clinicians in the same registry specialty: Diagnostic Radiology (CMS).

THOUSAND OAKS, CA · Exact areaEdit location

2024 published service data · 15 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Michael E Hlinka, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis without contrast (74176)
86%Service-mix similarityView profile →

Jason Chen-Shan Lee, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis without contrast (74176)
85%Service-mix similarityView profile →

David Aufrichtig, MD

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Ct scan of abdomen and pelvis without contrast (74176)
78%Service-mix similarityView profile →

Roy Gordon Bryan, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Ct scan head or brain without contrast (70450)
  • Screening mammography (77067)
76%Service-mix similarityView profile →

Ruth L Polan, MD

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • X-ray of chest, 1 view (71045)
  • Screening mammography (77067)
  • Screening 3d breast mammography (77063)
64%Service-mix similarityView profile →

Donald Edmond Decker, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Screening mammography (77067)
  • Screening 3d breast mammography (77063)
  • Ct scan of abdomen and pelvis without contrast (74176)
59%Service-mix similarityView profile →

Catherine A Moses, MD

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Screening mammography (77067)
  • Screening 3d breast mammography (77063)
  • Ct scan of abdomen and pelvis without contrast (74176)
52%Service-mix similarityView profile →

Deborah Abelson, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Screening mammography (77067)
  • Screening 3d breast mammography (77063)
  • Ct scan of abdomen and pelvis without contrast (74176)
49%Service-mix similarityView profile →

Robert S. Sitarz, MD

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
43%Service-mix similarityView profile →

Josephine Lee, M.D.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of upper spine without contrast (72125)
  • Mri scan of lower spinal canal without contrast (72148)
  • X-ray of knee, 3 views (73562)
40%Service-mix similarityView profile →

Roy Gottlieb, D.O.

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan of abdomen and pelvis without contrast (74176)
  • Ct scan of abdomen and pelvis with contrast (74177)
  • Ct scan of chest without contrast (71250)
38%Service-mix similarityView profile →

Rachel Lauren Delfanti, MD

Diagnostic Radiology (CMS) · Thousand Oaks, CA

Shared published services
3 shared services · view billing descriptions
  • Ct scan head or brain without contrast (70450)
  • Ct scan of upper spine without contrast (72125)
  • Ct scan of blood vessels of neck with contrast (70498)
35%Service-mix similarityView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in NPI order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.